Abstract
Construction and operation of a shielded hollow-cathode tube for emission spectrometric trace element analysis of solution is described. The demountable tube design also permits the tube to be used as a versatile line source in atomic absorption spectrometry. Quantitative analysis of solutions can be performed after evaporation, of a small portion of the test solution containing a suitable carrier salt in the cavity of the hollow cathode. Both stainless steel and graphite have been studied as cathodes. The effects of cathode material, filler gas, lamp current, and carrier salt were investigated for solutions of lead, copper, boron, and tin. The precision attainable in quantitative analysis is of the order of ±3–5%.
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